Thanks slicky. That 4.7 was the best of the best, an 'outlier' as the stat guys say. Everything was perfect and the Xsport leaped off of the line. My Xsport is solidly in the lower to mid 5s with v4, however, and that works for me. Tromp and go gets me mid 5s without fail. The lower ambient temps here in NY help a lot. Also, I made sure I seated the rings in the first couple of hundred miles with the 'ride it like you stole it' break in philosophy from my bike experience:
http://www.mototuneusa.com/break_in_secrets.htm
I'm at 12,875 miles now and she pulls really strong. YMMV, don't try this at home! Seating the rings in the fashion listed in the link above can come at the expense of other engine and drivetrain components. For me though, compression is king and you only get one chance to seat the rings.